Each new release of DB2 for z/OS contains “autonomic” features that allow the subsystem to diagnose potential issues in real-time. These include the gathering of data distribution statistics in real-time, the ability to reorg databases based on performance criteria, and other functions included in the new DB2 Autonomics Director.
However, it is still possible for performance and data availability to deteriorate due to a variety of things, including lack of proper referential integrity support, excessive package versions and potential security holes.
